Combined type-writing and computing machine.



H. MARSHALL.

COMBINED TIYPE wmrmc AND COMPUTiNG MACHINE.

APPLICATION FILED AUGHS 190?- RENEWEDAUG. 2, 1911- Patented Oct. 3, 1916.

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H. MARSHALL.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION man Aus.5. 1901. RENEWED AUG. 2. 19H.

1,200,386. Patented Oct. 3,1916.

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H. MARSHALL. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED was. 1902. RENEWEDYAUG. 2. 1 911.

1,200,386. Patented 001;. 3,191.6.

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UNITED STATES PATENT orrion.

HOLMES MARSHALL, or nnwyonn, N. Y., Ass enoa nr' MESNE ASSIGNMENTS, T0

unnnnwoon COMPUTING MACI-HNE' COMPANY, or

'lION or NEwYonK.

COMBINED TYPE-WRITING AND COMPUTING magma Specification ofLetters Patent.

r PatentedOct. 3, 1916.

Application filed August 5, 1907, Serial No. 387,005. ReneWed August 2, 1911. Serial No. 641,901.

To all whom it may concern Be it known that I, HOLMES New York, in the county of New York and State of New York, have invented a certain new and useful Improvement in Combined Type-Biting and Computing Machines, of which the following. is a full, clear, and exact description, reference being had to the accompanying drawings.

The objectv of this invention is to provide,

a combined tyfpeivriting and computingmachine so arranged that the single operat on: of the numeral keys may operate a plurality oi. registers, whereby footings and sub-footings may be registered. To this end I provide a plurality of sets of digit wheels arranged to carry in the usual manner, and I combine with these a plurality of actuators arranged for simultaneous operation resultant upon the actuation of the numeral keys, and I provide each set of digit wheels with independent means for turning such set to zero- This enables me to carr on the computations concurrently for any desired number of additions, while, after any addition, one of the rogisters'may be set back to zero for a new computation while the other register continues the original addition.

The invention is particularly well adapted for a book typewriter. With such machine, I provide a plurality of computing devices on a horizontal bar carried by the intermediate frame at the rear of the keyboard carriage, and on the key-board carriage I provide two master wheels operating in unison and having various fractions of a rotation according to, the numeral key depressed. For ordinary tabulations, the computing devices and master wheels are so positioned that when one master wheel 'is in mesh with any order of one computer the other master wheel is meshing with the co responding order of the other computor.

The invention is herein shown as embodied in a machine of the type known as the Elliott-Fisher billing machine, such ma- MARSHALL, a citizen of the United States, residing at.

Patents 1 Nos.

chine being shown, forexample, in patents 'Nos.

NEWKYORK, N. Y., A CORPORA-' As shown in the drawings, Figure 1 is a plan of my combined typewriting and computing machine, a portion of the machine frame being broken away. Fig. 2 is a rear elevation of the carriage and the mechanism mounted thereon. Fig. 3 is horizontal section through the master wheels and their mounting, theoperating.

pinion and the intermediate clutch; Fig. 1 1s an enlarged sectlon on l1ne4-4 of Fig.

1 looking toward the right, certain parts being shown in elevation and others broken away. Fig. 5,1s an enlarged section on the line 55 of Fig. 1 looking in the opposite direction from Fig. 4:. Fig. 6 is a bottom plan of the top of the carriage casing, showing the operating connections mounted thereon. Fig. .7 is a longitudinal vertical sectional viewthrough-the carriage casing, showing in-elevation the escapement of the carriage.- -,Fig. 8 is a sectional elevation showing themechanism for preventing reverse rotation of the master wheel and the checking arm which prevents over-running -of the master wheel. Fig. 9 is a sectional view through a portion of the carriage and the master wheel operating connections, with a portion of the computing device arranged in juxtaposition, showing the means for preventing inaccuracy due to an incomplete stroke. Fig. 10 is a perspective of the driving pinion. Figure 11 is an end view of the carriage.

As shown in the drawings, 10 indicates the typewriter carriage. This carriage rides at its front and rear side on the rails 12 and 13 of an intermediate frame, this frame being arranged to travel down the page, as set out in the Fisher patents referred to. In Fig. at the rack 14: constitutes a portion of the stationary open platen frame beneath which the paper lies, the rack furnishing means by which the intermediate frame is fed down the page as desired.

Mounted on the carriage 10, are the various finger keys, indicated by 16 and 17. These are connected by suitable levers, as 18 with links 19 which are connected to type bars 20, the type 21 carried by these bars being adapted to print through the ribbon 22 on the paper when the corresponding keys are depressed. This operation of printing on the paper applies to all the keys; the rear row of keys 17 however, are adapted also to simultaneously actuate computing mechanism, which will now be described.

Projecting rearward and upward from the intermediate frame are standards 25 which carry a horizontal cross bar 26 at the rear of the traveling carriage. On this cross bar I mount a plurality of computing devices, indicated by 27 and 28. For a fuller description of these devices reference is made to Patent 820,879 referred to. For the purpose of this invention it is deemed sufficient to state that each device comprises a. casing in which are mounted a series of digit wheels 29, each wheel having ten teeth carrying on their periphery the digits in order, one of said digits being visible through the lens 30 (Fig. 5). These wheels are arranged in any suitable manner, and as described in said patent, to carry from right to left.

Each computing device is provided with a lever 31, which is adapted to set the wheels of that computing device back to Zero. It is to be understood that the two computing devices are just alike and are adjustably positioned on the bar 26, the thumb nut 32, for example, providing means for clamping the computing devices in place.

Mounted on the upper plate in the type writing carriage in my machine are a pair of plates or standards 10 in which are journaled the ends of a horizontal shaft 41 on which are keyed two master wheels 42. These master wheels are located a suflicient distance apart so that one wheel may engage with one order of one computing device at the same time that the other wheel is engaging a corresponding wheel of the other computing device. It thus results that a driving rotation of the shaft etl concurrently adds the same amount on the two registers, and when one master wheel passes from one order to the next lower in one computing device, the other master whee-l makes a similar change in the other computing device, thus effecting computation of like order in the two heads 27, 28 by the simultaneous operation of the respective traveling master wheels or deno1ninationselectors 42.

To rotate the master wheel shaft according to the numeral key depressed, I provide the following mechanism. Loosely mounted on this shaft is a driving pinion 15 which is rotatably connected by a tongue and notch with a clutch 16. This clutch is capable of longitudinal movement and is pressed by springs 17 against the ratchet teeth i8 on the side of one of the master wheels 42. The incline of these teeth faces in such direction that when the pinion is rotated in one direction, the clutch drives the master wheel forward, while on the return movement of the pinion the clutch teeth click idly over the teeth of the master wheel, the master wheel itself being prevented from any return movement by a detent device 49 which engages with the teeth 50 formed on the master wheel. To drive the master wheel in its active direction, I provide a segment lever 51, (see Fig. 9) the teeth of which mesh with the pinion 45. This lever has a part 52 meshing with the teeth on a segment 58 Fig. 5 rigid with a rock shaft 5%. Projecting from this rock shaft and rigid with it are a series of arms 55 which have lips 56 extending under arms 57, the ends of which are bent laterally as 58 and each adapted to stand beneath a pin 59 projecting rearwardly from the stem of the corresponding numeral key 17.

Vith the construction described, when a numeral key 17 is depressed, the pin 59 engages the end 58 of the arm 57 and moves down with the arm 55, thereby'rocking the segment 51 and rotating the master wheels. This rotation is made to correspond to the numeral key depressed, that is, the No. 1 key rotates the master wheels one tooth and the No. 9 key rotates the master wheels :1 distance of nine teeth. This is accomplished by having varying amounts of play between the pins 59 and the ends 58 of the arms 57. Inasmuch as both master wheels are rigid on the same shaft and the computing devices are placed correspondingly to the two master wheels, it results that whenever a numeral key is depressed, in addition to printing the number of that key on the paper, the two computers are operated to add corresponding amounts.

The two registers being at zero at the be ginning of the addition, after the first number has been printed, the two registers will show the same. The two additions are thus continued identical until it is desired to take a sub-footing, when one of the registers is set back to zero and the other is left with the original total. The additions to the same number will now show differently on the two registers. one showing the total of the second set of numbers added and the other showing the grand total. In this way, the machine is adapted to accomplish the very desirable result of indicating footing and sub-footings.

When it was desired to write in the totals without affecting the computation, or to otherwise write numerals, at that portion of the page where the master wheels are in engagement, it has heretofore been necessary (see said Patent 820,879), before the master wheels come into engagement, to draw forward the lever 65 (Fig. 4) the lower end of which engages one of the arms 55 and rocks all of these arms to their lower-most position, holding them there so that no computing results, thus changing manually the computer from its normal state of addition in the computing zone to an abnormal state of silence in that Zone.

To prevent normally any operation of either computer by the master wheel intended for the other, I provide a connec: tion which shifts the lever 65 as soon as the master wheels leave their respective computers, either in the forward movement of the carriage or on its return. This I accomplish by providing a stationary bar 67, adjustably carried by the bar 26, and engaged on its rear edge by a roller 68 on a slidable bar 69 connected to an arm 70 which engages the front side of the lever 65. A spring 71 tends to pull this arm 65 into its forward position, thus disconnecting the numeral keys and the master wheels, but a bulge or cam 66 on the rear side of the bar 67 is so positioned that asthe master wheels are about to enter their respective com.- puters, the bar 69 is drawn rearward swinging the lever 65, thereby again connecting the numeral keys with the master wheels and allowing their actuation during the time they are in engagement with their corre sponding computers. IVhen, however, either master wheel is in engagement with the com puter corresponding to the other master wheel, the master wheels are blocked, preventing improper registration.

It is to be understood that the progressive movement of the carriage from left to right is caused by a tension strap 75, the movement being controlled by an escapement consisting of the wheel 76 which engages a rack 77 on the intermediate frame, this wheel being on a short shaft 78 carrying escapement wheel 79. As shown in Fig. 7 there are two pawls 80 engaging this escapement wheel, which is set forth in Patent No. 820,879, are adapted to be actuated by a link 81 connected with a rock arm 82 on a rock shaft 83. This rock shaft is actuated every time. a key is depressed, by reason of its having an arm connected with a lever 8% which carries a cross bar 85 beneath pins projecting from the key stems. There is one of these cross arms for each row of To prevent the master wheels over-rum ning by momentum, I provide an arm 90 (Fig. 8) having a toe adapted to engage theteeth of one of these wheels, this arm being connected by the link 91 with one of the levers 92, which carry a cross bar 93 stand ing beneath all of the arms 57. Thus, as these arms come into their lowermost position, the toe of the arm 90 engages one of the master wheels, )reventing either of them over-running.

At the same time that the detent-arm 90 is elevated to engage a master wheel, the bracket 72 on that lever operates the bell crank 73 to shove rearward the slide 7% into the path of the computing wheel next to the left of the one engaged by the master wheel, thereby preventing any over setting of that wheel by reason of a blow imparted, by the wheel in engagement with the master wheel, to the wheel upon its left when the first wheel is making a mathematical carrying to the wheel on its left.

To prevent the retraction of the master wheels when a key rises from an incomplete stroke, thereby causing an improper computation, I may provide a mechanism similar to that shown in Patent 820,879 and herein shown in detail in Fig. 9. In that figure, there is an angular locking arm 95 pivotally mounted intermediate of its ends upon a bracket 96 secured on the carriage. The locking arm is formed with a locking end 98 and a trip arm 99 extending in oppo site directions from its rear extremity. At its front end, this locking arm has a tail piece 100 engaged by a spring-urged detent 1.01 which yieldingly retains the arm 95 at either limit of its movement. Normally, the arms assume the position of Fig. 9, but as soon as the actuating lever 53 begins to move, the locking arm is designed to be swung on its pivot so as to present the end 98 thereof behind the flange of the master wheel clutch 46, thereby preventing that clutch from moving out of engagement with the master wheel. Since the master wheel is dogged against reverse movement, it follows that the actuating pinion 15 connecting with the clutch will be held against rotation,

thus preventing the retraction of the actuating lever 51 or any other element of the operating connection between the pinion and key stem.

The means shown for swinging the locking lever to its locking position includes a plate 102 connected to the shaft 60 for movement with the actuating lever 51 and carrying a small contact arm 103 pivoted upon the plate and held in its normal position by a spring 104. The end of this contact arm 103 is normally in engagement with the tail piece 100 of the'locking lever and serves to depress the tail piece and" thereby swing the lever into its locking po-" The pivotal mounting of the consition. tact arm 103 permits the latter to move back to its normal condition upon the retraction of the actuating lever. is operated upon the return of the masterwheel actuating members, it results that so long as the arm 98 is in the path of the clutch i6, there can be no travel of the carriage. The operator will thus be apprised of his error and will againstrike" the key, effecting a full depression, completing the movement of the master wheel which provides a suitable stepped plate 111 adapted to be positioned according to the active order of the computation This single tabulator, which is more fully described in patents 666,762 and 723,937, re-

ferred to, thus serves the purpose of causing the proper presentation of both' my master wheels to the proper computers.

One of the computers may be provided" with a suitable distance block as 112, to insure the two computers having the same relation to each other as the two master wheels do to each other. There may'be certain cases, however, where it is desirable to operate computations of different orders by one master wheel from those of the other. For example, one computer might operate to add cents and the other dollars and fractions, whereupon the digit orders of the computers would be out of correspondence with each other. For such occasional uses, the two computers should be independently adjustable, and for this reason the distance block is shown as hinged to one of the computers, whereby it may be swung out of the way.

In many cases it is desirable to print the totals in red ink. This has been accomplished by providing the ribbon 22 with a red portion indicated by 33, there being suitable finger-operated shifting means to bring the red portion into action. I have devised mechanism for connecting this finger-operated shift with mechanism throwing out of action the master wheels, the result being that the totals may be writ- As the escapement' the left 'hand edge of the slot. lever 34 is shifted to its rearmost position to for ten in red ink directly'beneath thecolumns added without altering the indication shown "each spool 35 on any ofa number of positions. A spring 36 tends to force the spool rearward with the front portion of the ribbon in action. Whenever the upper end of the lever 34,-however, is shoved rearward, each spool is thereforeshove'd forward by means of the members 37'extending behind the two spools and each connected with the lower end ofa corresponding rockarm 38 whichis rigid on a cross rock shaft 39 which is operated by the lever 31.

The upper end of the lever 31 extends through a slot in a suitable guard plate (31 and is adapted to be held in any of a number of' positions by engaging shoulders along lVhen the bring the red portion of the ribbon into action, it engages a pin on an arm or lever 62, the lower end of which is pivoted to the carriage and the upper end of which is linked by a link 63 with an'arm 165. This arm is rigid on a rock shaft 172 which carries cam shaped=arm 173' adapted to engage and force downward an arm 171 rigid on the rock shaft 51. This action swings the forward side of that rock shaft downward, carrying all thearms 55 and 57 to idle posi-l 'tion' and thereby disconnecting the master wheels from the numeral keys. Vith the parts in this position, the total may be written in red ink without afifecting the computing devices. lVhen the total has been written, a release of the arm 31 brings the regular portion of the ribbon into action and at the sametime'releases the lever (32 so that a spring, which may be attached to the arm 165, restores the connecting parts and allows connection to be reestablished between the numeral keys and the master wheels.

, I claim:

1. The combination of a plurality of master wheels, numeral keys, connections between same and said master wheels for simultaneously operating the master wheels, a plurality of computers adapted to be simultaneously operated by the corresponding master wheels, and automatic means for preventing operation by the keys when any master wheel is in engagement with any other computer, than the particular computing device with which said master wheel is intended to correspond.

2. The combination of a traveling carriage, a plurality of master wheels carried thereby, numeral keys on the carriage, con nections between same and said master wheels for simultaneously operating the master wheels and according to the digits of the numeral keys, a plurality of computers adapted to be simultaneously operated by the corresponding master wheels, and automatic means for preventing operation by the keys when any master wheel is in engagement with any other computer, than the particular computing device with which such master Wheel is intended to correspond.

3. The combination with a book typewriter having an intermediate frame and a laterally traveling carriage mounted thereon, numeral keys and letter keys on the carriage, a shaft on the carriage, two master wheels on the shaft, operating connections between said shaft and the numeral keys of the typewriter, two computing devices carried by the intermediate frame, with which said master wheels may simultaneously cooperate, means for setting one of said computing devices to zero independently of the other, and means operated automatically by the carriage movement for rendering impossible the operation of one of the computing devices by the keys at a certain time when one of the master wheels is in engagement therewith.

4. The combination of a plurality of computing devices arranged side by side, a plurality of corresponding master wheels arranged side by side and spaced apart so that the master wheels may simultaneously engage the corresponding orders in the respective computing devices, one of said mas ter wheels being adapted to pass through the computing device intended for operation by another master wheel, and automatic means for preventing the operation of the computing devices by the keys when one of said wheels is in engagement with any other computing device, than the one to which it corresponds.

5. The combination of a book typewriter having a laterally traveling carriage, a shaft mounted on said carriage, two master wheels on said shaft, operating connections between I and automatic means for preventing the ac- I tuation of the numeral keys from operating ale right hand computer when the left hand master wheel is in engagement therewith or vice versa.

6. The combination of a computlng device, numeral keys, an inking ribbon having,

a plu "ality of colors, mechanism operated by the numeral'keys for actuating the computing device and for printing through the ribbon, and coj ointly operating means for shifting the ribbon and disconnecting the numeral keys from the computer.

7. In a computing typewriter, the combination of a typewriter carriage, a ribbon and numeral keys mounted thereon, a masterwheel mounted on the carriage, a computing device with which said master wheel may cooperate, mechanism connecting said master wheel with said numeral keys, type adapted to print through the ribbon and connected with said numeral keys, finger operated mechanism for shifting said ribbon, mechanism for throwing out the connection between the numeral keys and the master wheel, and connecting mechanism between such throwing-out mechanism and the ribbon shifting mechanism.

8. The combination, with a computing typewriter and computing device operated therefrom, of means for changing the color of the printing, and mechanism operating automatically and concurrently with such change for disconnecting the computing de* vice from the typewriter mechanism.

9. The combination, with a typewriter having numeral keys, a computer and a connection between them, of a multicolored ribbon, and mechanism for concurrently shifting said ribbon and disconnecting the numeral keys from the computer.

10. In a combined typewriter and computingmachine, the combination, with means for writing words and figures, of two computing devices, two corresponding master actuators controlled by the numeral keys of the typewriter for concurrently operating said devices, means for simultaneously changing the presentation of said actuators from one order to the next, means for setting one of said devices to zero independently of the other, and automatic means for preventing operation of either computing device when the master wheel is in engagement with any other computing device than the one to which the said master wheel corresponds.

11. The combination, with numeral keys, of a shaft, two master wheels on the shaft, operating connections between said shaft and the numeral keys, two computing devices with which said master wheels may 'simultaneously cooperate, means for setting one of said computing devices at zero independent of the other, means for preventing overrunning of either master wheel, and automatic means for preventing operation of either computing device when the master wheel is in engagement with any other computing device than the one to which the said master wheel corresponds.

12. The combination of a plurality of registers, a plurality of simultaneously actuated master wheels, mechanism for simultaneously changing the presentation of said master wheels from one order to the next in the corresponding registers, and automatic means for preventing operation of either computing device when the master wheels are in engagement with any other computing device than the one to which the said master wheel corresponds.

13. The combination of a plurality of computing devices ar 'anged side by side, av plurality of master wheels arranged side by side and spaced apart so that the master wheels may simultaneously engage the corresponding orders in the different computing devices, means for simultaneously and correspondingly actuating said master wheels, and automatic means for preventing operation of either computing device when the master wheels are in engagement with any other computing device than the one to which the said master wheel corresponds.

.1. l. The combination with recording mechanism and adding mechanism, of keys for the recording mechanism, a laterally shittable multicolor ribbon, key connecting mechanism including a member movable to dif-.

ferent positions todetermine whether the keys shall or shall not operate the adding mechanism, and a second member movable to determine the lateral position of the ribhon and to move the recited member of the key connecting mechanism.

15. The combination of a set of numeral keys, numeral types connected thereto, a computing mechanism incliuling means to effect computations at the printing strokes of said keys, a bichrome ribbon mechanism, whereby numbers may be written in one color by the keys and also added together, and means connected to said bichrome ribbon mechanism and to said computationeffecting means to shift the bichrome mechanism and concomitantly silence the computation-eiiecting means, to cause the type impressions to be ditierently colored when the he are operated to write a number in the adding Zone without performing computation, whereby the total of a column may be typewritten within the adding Zone without carrying said total into the computing mechanism, and whereby the work-sheet necessarily shows that the total, although typewritten in the adding zone, was not carried into the computing mechanism.

16. The combination with computing devices, computing keys, of printing devices operated by said keys, computing devices controlled by said keys, a multicolor printing ribbon vibratable by the keys, a shiftable device to disconnect the computing devices from the keys, and connections from said shittable device to said ribbon, to bring a diii'erent color thereof into use at the operation of the printing devices by said keys.

1?. The combination of two computing heads, two master wheels, each master wheel according with a single head, key-controlled means for turning said master wheels concomitantly, means for effecting relative step-by-step movements between the master wheels and the computing heads, means for setting one of the computing heads to zero independently of the other, and means for silencing either computing head when the discordant master wheel is in engagement therewith.

18. The combination with a plurality of computers, of a plurality of master wheels individual to said computers, said master wheels and said computers having a relative movement, and means rendering said master wheels effective to actuate the computers solely when the master wheels are in register with the accordant computers.

1!). In a coi'nputing typewriter, the combination with a typewriter carriage movable into and out of a computing zone, of alphabet and numeral keys to control said carriage, computing mechanism, connections between the numeral keys and said computing mechanism, a bichrome mechanism shit'table at will to bring either color into use when the carriage is out of said zone, whereby said bichrome mechanism may cooperate as desired with all of said keys at any part of the writing field, and means for shifting said bichrome mechanism and concomitantly changing the character of said connections in the computing zone, so that the typewritten record will indicate the character of said computing connections in said computing zone.

20. The combination with a. computing mechanism including a master wheel and computing wheels operable seriatim thereby, of printing mechanism, numeral keys common to both said master wheel and said printing mechanism for causing the operation of the same concomitantly, means for enabling said printing mechanism to print in different colors, and means for concomitantly freeing said master wheel from actuation by said keys, and actuating the said first-named means to change the color so that said printing mechanism will print in a dififerent color when said master wheel is silent than when it is active.

21. The combination with a traveling computing head, master wheel, and actuating mechanism therefor, of a set of dial wheels, of a master wheel for operating them one after the other, masterwheel actuating means moved to a silent position when it is desired to print totals in a diiierent color of said master member amounts corresponding to the values of the numeral keys actuated, and means for automatically disconnecting said numeral keys from said com; puter when in said zone.

23. The combination with a computing mechanism including a computer and a master member for actuating said computer, said computer and said master member hav ing a relative traveling movement and acting when in conjunction with each other, to form a computing zone, of numeral keys for controlling the action of said computing mechanism amounts corresponding with the values of the numeral keys actuated, and means controlled by said relative traveling movement for automatically disconnecting said numeral keys from said computing mechanism when said computer and said master member pass out of conjunction with each other.

24. The combination with a plurality of computing heads, of a master wheel for actuating each of said, computing heads, means for actuating said master wheels, and a single automatic means for determining the period during which all of said master wheels may be actuated and thus determine the period in which all of said computing heads may be actuated.

25. The combination with typewriting mechanism including numeral keys and a polychrome ribbon shift enabling typewriting in different colors, of computing mecha nism controlled in its action by said numeral keys, and means for automatically clearing said computing mechanism beyond the sphere of operation of said numeral keys when achange is made from a certain color to another color by said polychrome ribbon shift, so as to prevent a computing action by said computing mechanism when printing in a certain color;

26. A computing typewriter combining alphabet and numerals keys, alphabet and numeral types operated thereby, a carriage movable into and out of a computing zone, mechanism to be operated through connections with the numeral keys to register addition, the adding mechanism being silenced when the carriage is out of said zone, means dependent upon the movement of the can riage intosaid zone to render the adding mechanism effect ve, whereby numbers wr1tten by said keys in said zone will be automatically added, a ribbon mechanism shiftable to enable said types to write in different colors, and means operable at will when the carriage is in said computing zone, for silencing said connections between said numeral keys and the adding mechanism and concomitantly shifting said ribbon mecha nism to cause the numeral types to print in a different color; dition may be written by said keys in the computing zone without affecting said adding mechanism, and whereby the worksheet will show that said total was not carried into the adding mechanism; said ribbon mechanism being also shiftable at will when the carriage is out ofthe computing zone to enable the alphabet and numeral types to print in either color as desired. a

27. A computing typewriter combining numeral keys and types operable thereby, a carriage movable into and out of a computing zone, mechanism for computing the numbers written by said numeral keys, said coinputing mechanism being disconnected from said keys when the carriage is out of the computing zone thereby relieving the keys of the burden of the computing mechanism,

meansdistinct from said computing mechanism and dependent upon the movement of the carriage into the computing zone, for connecting said computing mechanism operatively to said keys, and means for coniointly altering the action of the numeral keys with reference to said computing mechanism and altering the character of the type color of ink ribbon. into use; and means dependent upon the position of the carriage within said zone for restricting the machine to the use of one color of ribbon when the computing mechanism is in a certain condition, and to another color of ribbonwhen the computing mechanism is in another con-' dition. p

29. A computing typewriter combining a carriage, computing mechanism shiftable from one condition to another, polychrome ribbon mechanism, means dependent upon the presence of the carriage within a computing zone forrestricting the machine to the use of one color ,of ribbon when the computing mechanism is' in onecondition,

and to another color of ribbon when the como puting mechamsm 1SV-1I1 another cond tion,

whereby the total of an ad- F nism shit'table from one condition to another condition, ribbon mechanism having shiftable means for bringing different colors of ribbon into use, and means operated in accordance with the position of the carriage for restricting the machine to the use of one color of ribbon if the computing mechanism is in one condition, and to another color of ribbon if the computing mechanism is in another condition.

31. A computing typewriter combining a carriage, computing mechanism adjustable to different conditions, means operated by the movement of the carriage to adjust said computing mechanism to one condition, a manually operable device for restoring the computing mechanism to the condition from which it was shifted by the carriage, and a ribbon-color-controlling mechanism operable by said manually operable device.

82. A computing typewriter combining a carriage, a plurality of totalizers or computers, means to operate them simultaneously, and means controlling the operation of all of said totalizers and shiftable relatively to the carriage to determine the Zone of operation of said totalizers.

A calculating machine combining a carriage to determine the place of calculation, a handle adapted to occupy a normal position during a certain operation of the machine and another position during a certain other operation of the machine, and means, including a part moving with the carriage, and operated at a predetermined location thereof, to cause the handle to move from one of its positions to the other.

84. A computing typewriter combining a typewriting mechanism, computing mechanism for registering numbers written by said typewriting mechanism, means to set said computing mechanism from one condition to another, a carriage, and means for enabling said carriage to cause an adjustment of said setting means; said setting means being also manually adjustable.

35. A computing typewriter combining a typewriting mechanism, computing mechanism for registering numbers written by said typewriting mechanism, means to set said computing mechanism from one condition to another condition, and means constructed to act automatically at the end of a computing operation for returning said setting means to its original position; said setting means being also manually adjustable.

136. A computing typewriter combining numeral keys, a master wheel, digit wheels, means including a carriage for providing relative movement between said master wheel and said digit wheels, and means operated in accordance with said movement for permitting operative connections to be made between said keys and said digit wheels in certain portions of the carriage travel, and normally preventing such connections in other portions of the carriage travel, said second means being also manually operable at will, to permit such connections in said other portions of the carriage travel.

37. A computing typewriter combining numeral keys, a master wheel, digit wheels, means including a carriage for providing relative movement between said master wheel and said digit wheels, and means normally operated automatically to permit or prevent computation according to the position of the carriage in a computing zone or out of such a zone, said second means being also operable manually at will, to permit computation when thecarriage is in a nor mally non-computing zone.

38. A computing typewriter combining numeral keys, a denomination selector, a computer, means including a carriage for providing relative movement between said selector and said computer, whereby said selector causes numbers struck seriatim by said keys to be recorded in progressively lower orders of computation in said computer, means normally operated automatically to control the state of the computer in accordance with the position of the carriage, and adevice operable in a normally noncomputing zone of the carriage travel to eifect an abnormal operation of said second means, whereby the computer may be caused to assume'a computing state for such nor mally non-computing zone.

39. A computing typewriter combining numeral keys, a denomination selector, :1 computer, means including a carriage for providing relative movement between said selector and said computer, whereby said selector causes numbers struck seriatim by said keys to be recorded in progressively lower orders of computation in said computer, means normally operated automatically to control the state of the computer in accordance with the position of the carriage, and a device operable in a normally non-computing zone of the carriage travel to effect an abnormal operation of said second means, whereby the computer may be caused to assume a computing state for such normally non'computing zone; said device being inoperative upon said second means in the computing zone.

40. A computing typewriter combining numeral keys, a denomination selector, a computer, means including a carriage for providing relative movement between said selector and said computer, whereby said selector causesv numbers struck seriatim by said keys to be recorded in progressively lower orders of computation in said computer, means normally operated automatically to control the state of the computer in accordance with the position of the carriage, a device operable in a zone of the carriage travel to efl'ect an abnormal operation of said second means, whereby the computer may be caused to assume an abnormal state for such zone, saiddevice being inoperative upon said second means in another zone, and manual means operable independently of said second means to change the state of the computer in said second zone.

41. A computing typewriter combiningnumeral keys, a traveling carriage, a com puter, automatic means adapted to cause a normal state of the computer in one zone of the carriage travel and another normal state in another zone of the carriage travel, a device operable manually in said first zone to effect an abnormal state of the computer but inefiective for such purpose in the second zone, and a second device operable manually in said second zone to efiect an abnormal state of the computer but ineffective for such purpose in the first zone.

42. A computing typewriter combining numeral keys, a traveling carriage, a computer, automatic means adapted to cause a normal state of the computer in one zone of the carriage travel and another normal state in another zone of the carriage travel, a device operable manually in said first zone to effect an abnormal state of the computer but ineffective for such purpose in the second 4 zone, and a second device operable manually in said second zone to effect an abnormal state of the computer but ineffective for such purpose in the first zone; said second device acting to change the color of the printing simultaneously with its change of the state of the computer. D

43. A computing typewriter combining numeral keys, a denomination selector, a computer, means including a carriage for 'providing relative movement between said selector and said computer, whereby said selector causes numbers struck seriatim by said keys to be recorded in progressively lower orders of computation in said computer, means normally operated automatically to control the state of the computer in accordance with the position of the carriage, a device operable in a zone of the carriage travel to effect an abnormal operation of said second means, whereby the computer may bQi caused to assume an abnormal state for such zone, said device being inoperative upon said second means in another zone, and mechanism adapted to change the color of the printing, the state of the computer in said second zone being changeable only by the operation of said mechanism.

44. A computing typewriter combining numeral keys, a denomination selector, a

computer, means including a carriage for providing relative movement between said selector and said computer, whereby said selector causes numbers struck seriatim by said keys to be recorded in progressively lower orders of computation in said computer, means normally operated automatically to control the state of the computer in accordance with the position of the carriage, a device operable in a zone of the carriage travel to effect an abnormal operation of said second means, whereby the computer may be caused to assume an abnormal state for such zone, said device being inoperative upon said second means in another zone, and mechanism adapted to change the color of the printing and simultaneously to change the state of the computer in said second zone. 1

45. A computing typewriter combining numeral keys, a traveling carriage a computer, automatic means adapted to cause a normal state of the computer in one zone 01' the carriage travel, and another normal state in another zone, and a device operable manually in the first zone to efiect an abnormal state of the computer and simultaneously change the color of the printing, said device being operable in said second zone to change the color of the printing but ineffective there to effect an abnormal state of the computer.

46. A computing typewriter combining numeral keys, numeral types operated therefrom, a traveling carriage adapted to provide a relative movement between the types and platen, a computer adapted to be operated from said keys, mechanism adapted to change the color of the ribbon, means operated by the carriage travel for determining the state of the computer, and means whereby an alteration of the state of the computer may operate through said color mechanism to change simultaneously the color of the printing.

47. A computing typewriter combining numeral keys, numeral types operated therefrom, a traveling carriage providing relative movement between the types and platen mechanism shiftable to change the color 0 the printing, a computer adapted to be operated from said keys, and means controlled by the carriage travel for determining the normal state of the computer in acccordance with the position of the carriage, said means operating to prevent the change of computer state in certain portions of the carriage travel unless said mechanism is simultaneously shifted, and for preventing there a shifting of said mechanism unless a simultaneous change is made in the state of the computer.

48. A computing typewriter combining numeral keys, numeral types operated therefrom, a traveling carriage providing rela- 15o computer; said mechanism being operable in other portions of the 'carriage travel to change the color of the printing without zvfiectin-g the normal state of the computer.

49. A computing "typewriter combining numeral keys, a computer operated through connections from said keys, a travel ing carriage, means'operated by the carriage travel to brea sa-id connections, and =independent means operated manually to break said connections and simliltaneously'chasnge the color of the printing, the computer being inoperaltive from said "keys if'either of said means is in a position to break the connections.

'50. A computing typewriter combining numeral keys, a computing device including -a -total'izerand a master wheel adapted to be rotated through connections from said numeral keys to operate said totalizer a travelin'g carriage, and means operated by the movement of the carriage for' breakingsaid connections, the break occurring at a point between the keys and the portions -of the connections offering the :greater lpflll't 'of the resistance of-the'operation of the keys dur ing computation.

51. A computing typewriter combining n'umera'l keys, a computing device including 1a totalizer and a master wheel adapted to be rotated through connections from said numeral keys to operate said :totalizer, a traveling carriage, and means operated by the mov-ementro'f the carriage for breaking said connections, the break relieving the keys of substantially all of the load A of operating said computing device.

52. n computing tylpewriter combining numeral keys, =a computing device including a tota'lieer and a master "wheel adapted to be mitated through connections from *said 1111- mera'l keys to operatesaid 'totalizer, a travcling carriage, and im'eans operated by the movement of the :ealrri age for breaking said connections, the break occurring on the *key side or the major part of said connections,

whereby *s'alid keys are 1 substantially fr'ee of theiloadwf*suid connections.

53. A computing typewrlter combinin numeral keys, a computing device eomprisiinga t'o'talizer and a master Wheel driven through connections from said 'keys -'to oper- $6 ate 1 said totalize'r, :a traveling carriage, "and means operated by the movement of the carriage fordisconnecting the keys from the totalizer, the master wheel. and substantially all of said connections, whereby said tota'lizer is automatically made operative or "0 silenced according to the position of the carriage.

5 In a combined typcwriting and computing machine, the combination with the typewriter ribbon mechanism comprising a hand operated rock shaft for changing the color of the printing, and the computing machine including a part movable by hand to change the character of arithmetical operation, of a connecting rock shaft having 'one arm rocked with said rock'shaft of :the ribbon mechanism :and another arm operative upon said part.

55. In a. combined typewriting and computing machine, the combination with the typewriter ribbon mechanism comprising a part movable by hand to two positions to determine the color ot' the ribbon, and the computing mechanism comprising :a part 'movable by hand to two positions to determine the character of arithmetical 'operation, of a rock shaft having two=arms trans mitting motion from one of said parts to the oth er.

56. In a combined typewriting and oomputing machine, the combination with *the typewriter ribbon mechanism comprising a hand operated rock "shaft for changing the 'color of the printing, and the computing mechanism including a part movable by hand to change thecharacter of arithmetical 'operatiolnof a connecting rock s'hathan arm 'on said connecting rock shaft inoperative engagement with said movable part, a second arm on said connecting rock shaft, and an arm on said hand operated rock shaft in operative engagement with said second arm.

'57. The combination with a recording mechanism including keys and type characters, of an inking ribbon, ribbon Shifting means, adding mechanism, key connecting means operative to connect the keys and adding mechanism, 'and' a connection 'between the key connecting means and 'the 15 ribbon shifting means.

-5'8. The'coin'bination 'with'recording mechanism 'and adding mechanism, of keys arranged to "operate both of said mechanisms, a member movable to determine whether a predetermined one A of said mechanisms shall -'or shall not operate upon the depression of the 'keys, m'dlticolor inking means for the recording -mechani-sm,-a member movable to selector-determine the color'o'f the record, and means whereby one of said members will operate "the other.

59. The combination with recordingmechanism and adding mechanism, of keys, at

roc

connection between the keysand recording mechanism, key connecting mechanism including a member movable to determine Whether or not the adding mechanism shall be operated from the keys, multicolor inking means for the recording mechanism, a

lecting member is moved to select a predetermined color.

In testimony whereof, I hereunto aflix my signature in the presence of two witnesses.

HOLMES MARSHALL.

member movable to select the color of the Witnesses: record, and means whereby the first named WILLIAM P. JEFFERY, member will be moved when the color se- C. SPRUNG.

Copies of this patent may be obtained {or live cents each, by addressing the Commissioner of Patents.

' Washington, .D. 0. 

